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"""
web related utilities
"""
class UsageError(Exception):
""" """
def get_https_domain_and_port(full_domain):
"""
returns a tuple with domain and port
from a full_domain string that can
contain a colon
"""
if full_domain is None:
return None, None
https_sch = "https://"
http_sch = "http://"
if full_domain.startswith(https_sch):
full_domain = full_domain.lstrip(https_sch)
elif full_domain.startswith(http_sch):
raise UsageError(
"cannot be called with a domain "
"that begins with 'http://'")
domain_split = full_domain.split(':')
_len = len(domain_split)
if _len == 1:
domain, port = full_domain, 443
elif _len == 2:
domain, port = domain_split
else:
raise UsageError(
"must be called with one only parameter"
"in the form domain[:port]")
return domain, port
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